Recently, an Automobile Insurance Company Performed a Study of a Random

Multiple Choice

Recently, an automobile insurance company performed a study of a random sample of 15 of its customers to determine if there is a positive relationship between the number of miles driven and the age of the driver. The sample correlation coefficient is r = .38. Given this information, which of the following is appropriate critical value for testing the null hypothesis at an alpha = .05 level?

A) t = 2.6104
B) t = 1.7613
C) t = 1.7531
D) t = 1.7709